12393734500 has 96 divisors (see below), whose sum is σ = 31017692160. Its totient is φ = 4237891200.

The previous prime is 12393734461. The next prime is 12393734531. The reversal of 12393734500 is 543739321.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 12393734500.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1356949 + ... + 1366051.

It is an arithmetic number, because the mean of its divisors is an integer number (323100960).

Almost surely, 2^12393734500 is an apocalyptic number.

12393734500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12393734500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15508846080).

12393734500 is an abundant number, since it is smaller than the sum of its proper divisors (18623957660).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12393734500 is a wasteful number, since it uses less digits than its factorization.

12393734500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9518 (or 9506 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 37.

The spelling of 12393734500 in words is "twelve billion, three hundred ninety-three million, seven hundred thirty-four thousand, five hundred".